METHOD FOR SUPPLY OF INHIBITOR IN THERMOPLASTIC MATRIX AND DEVICE FOR ITS REALISATION Russian patent published in 2010 - IPC E21B37/06 

FIELD: oil and gas production.

SUBSTANCE: group of inventions relates to oil industry, in particular may be used to supply inhibitor of salt deposits onto surface of submersible electric motors and input of electric centrifugal pumps. Method includes arrangement of inhibitor in cylindrical vessel with channels in upper part of body, lowering vessel into well, dilution of inhibitor, its withdrawal from vessel. Inhibitor is mixed with viscous matrix substance to form hydrophobic thermoplastic mix, density of which exceeds density of bed fluid. After lowering of vessel into well, mixture is heated up to ambient temperature. After heating mixture is taken out of vessel via dosing hole under action of terrestrial gravitational field. Mixture is diluted in working chamber by diffusion method with further transfer of diluted inhibitor into bed fluid. Working chamber is installed below cylindrical vessel, and vortex motion of bed fluid is arranged inside.

EFFECT: increased efficiency of inhibitor supply process.

5 cl, 1 dwg